A rechargeable device most often made of lead plates covered in an electrolyte and protected by a plastic shell which supplies consistent electrical energy to a motor vehicle. Often referred to as an SLI battery (starting, lighting, ignition). Powers starter motor, lights, and ignition systems of a ...

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8
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4answers
6k views

Can I jumpstart a non-hybrid car from a hybrid or full electric car?

This morning I had starter battery troubles with my 2001 VW Eurovan. As it happened, my father-in-law arrived just at the right time in his fancy new Toyota Camry hybrid. So we opened the hoods, dug ...
0
votes
0answers
22 views

Adding another battery and solar panels [duplicate]

I just bought a 93 chevy conversion van I will but turning into a full time camper van. I had planned on mounting solar panels to the roof and install lights on the inside. The stock lights on the ...
5
votes
1answer
58 views

Car battery ground appears to have severed, is it safe to jump?

I tried to start my car today but after a few splutters, the ignition quit (i.e. turning it does nothing now). The inside lights / brake lights don't go on anymore, so I assume the battery's dead. But ...
6
votes
3answers
5k views

AC blower won't turn on after replacing battery

I have a U.S. 2011 Volkswagen GTI. After the car wouldn't start (starter would crank but engine would not turn on) I decided it's probably time to replace the battery, and did. Car starts fine, but ...
5
votes
4answers
1k views

Renault Modus wont start

The car is a Renault Modus 1.4 16v Dynamique 5dr 2005. The symptoms are: Car wouldn't start last week. The car cranks but does not start. Push started the car in 2nd, engine starts. Took The car ...
0
votes
3answers
188 views

Impact of cigarette lighter ports on car battery

I have a cigarette lighter hole in my car that produces 12V. I bought a cigarette lighter extender that has 3 cigarette holes and each hole has 12V so that's 36V instead of 12V. Will that damage my ...
51
votes
6answers
3k views

How to maintain a sometimes-used vehicle?

My daily commute changed from 9 miles to 9 feet when I started working remotely. That means I very rarely drive my car much. After a particularly hectic month, I didn't drive for about 4 weeks and ...
7
votes
3answers
2k views

How should I prevent my battery going flat when I leave my car alone for a month?

I will be leaving my Focus alone for around a month in (scottish) winter weather. Ordinarily I would make sure to take the vehicle out at least once a week to prevent the battery going flat in the ...
8
votes
3answers
1k views

Is charging my engine battery like this bad?

I left a 2001 V6 Honda Accord unrun for ~4 months (I don't have a license). Naturally, the battery is dead. I have heard that letting the alternator charge the battery from empty like this puts ...
10
votes
1answer
66 views

Is there any advantage to keeping the battery “topped up”?

I got an engine/cabin heater installed into my car right before winter, which was great for driving comfort this winter. One of its "side-effect" features is that it charges and keeps your battery at ...
5
votes
1answer
45 views

2013 Honda Accord clicking repeatedly on its own?

I come home at 2:30 today. Two hours later, I go out to the garage to find my car clicking repeatedly while the parking lights flicker in unison with the clicks. I hadn't even gotten into my car yet....
4
votes
1answer
79 views

What are the cold cranking amps required to start Jaguar S type 3l petrol engine

I'm trying to find the typical* cold cranking amps required to start a Jaguar S-type 3 litre v6 petrol engine (UK) so that I can be more informed when I research batteries, boosters, chargers etc. I'...
7
votes
1answer
268 views

How can I tell if a flat car battery is charging when hooked up to a trickle charger?

I've been researching charging flat batteries and I think, if I've understood correctly: Trickle charging isn't always possible from flat, because: Some trickle chargers don't charge at all unless ...
3
votes
3answers
582 views

Sudden electrical problems in 2001 Buick Century

My wife drives a 2001 Buick Century with ~130k miles. A few days ago, she was driving it home when she described that several warning indicators came on suddenly, the windshield wipers stopped ...
3
votes
1answer
84 views

When jump starting a car why not hook up the negative on the donor car last? [duplicate]

I understand the safety concerns leading to grounding to the frame or engine for the car with a dead battery. From what I've read the dead battery is the one with a chance of venting hydrogen, but ...
8
votes
3answers
594 views

Why do attempts to charge a flat car battery with an electronic battery pack give results as if there's a short circuit?

I'm not having a good weekend - car wouldn't start, even when jump started using a conveniently placed 12v generator battery (almost identical to this question, I suspect dodgy cabling to the starter)....
8
votes
1answer
318 views

Battery Light Won't Go Off Since Changing Battery

I just changed the battery on my 98 Mazda 626 and now the battery light comes on and stays on after starting the car. I checked the battery and it's reading 12.8v with the engine off, and 13.8 with ...
5
votes
1answer
49 views

I reversed polarity on a jump pack when attempting to start my 2000 Dodge Neon.

I attempted to jump my 2000 Dodge Neon off in the dark with a jump pack, and I accidentally reversed the polarity. The tire inflator on the jump pack landed on my positive starter wire and burned it ...
10
votes
3answers
539 views

How to upgrade a motorcycle battery to a bigger AH battery?

My motorcycle (honda CBF150) came with a 12V 3AH battery. I want to change the stock 35w headlight to a higher power one and connect them directly to the battery (the stock ones are not, and they ...
0
votes
0answers
58 views

Cleaned Battery Corrosion and Now Engine Won't Rev [closed]

I had a large build-up of battery corrosion on my car battery. I unplugged the cables off it, cleaned the terminals with soda. After reattaching everything, I now find that while my truck will start, ...
6
votes
1answer
60 views

New brakes, intermittent ABS light and battery light

Last weekend, I put new Wilwood calipers, pads and stainless brake lines on the rear of my 06 Solstice. On Tuesday, I started seeing an intermittent ABS warning light. Yesterday (Wednesday), I ...
6
votes
2answers
1k views

Car Battery Dying Overnight - Disconnected

I have been having trouble starting my car (needed to jump it twice, once in the morning, and once in the afternoon). Sometimes it would make a clicking noise when trying to start or it would be ...
16
votes
5answers
69k views

What causes battery terminal corrosion?

I put a new battery in my car about 8 months ago. After a problem starting a couple days ago, I found that there was massive corrosion under the battery terminals, so I cleaned them out and ...
2
votes
1answer
56 views

2007 BMW X3 3.0Si wont start

I made the mistake of buying a BMW when moving to the Caribbean. It ran very well and has had a quarterly service every year. (We basically live on a permanent hill, very steep up and down) Last week ...
2
votes
3answers
8k views

Interpreting AC Delco's manufacturing date for car batteries

I understand that AC Delco encodes the month of manufacturing a car battery using two digits and encodes the year by one digit. The battery I just purchased, for example, is labeled P124R, which, ...
2
votes
3answers
30k views

The car makes clicking noise when i try to turn on the engine. What could be the problem?

I've a 2007 honda civic. The radio and everything work fine, but when i try to turn on the engine it makes clicking noise. I thought, it could be a battery problem. I also try jump starter to start ...
6
votes
3answers
853 views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
2
votes
1answer
8k views

Car always takes several attempts to start, what's the problem?

Recently (since the beginning of the winter), my car has been taking several attempts to start every time I use it. Several factors about the car have changed, so it's hard for me to tell what's ...
35
votes
3answers
34k views

Is there a way to put Prius with dead battery into neutral?

I own a 2010 Prius. It has a dead battery, front facing forward in my garage. I do not have long enough jumper cables. I’ve searched the Internet. Did Toyota really create a car that cannot be put ...
2
votes
1answer
75 views

Swift Dzire Battery Sign remains ON whenever car is started after 9-10 hrs

Swift Dzire Battery Sign remains ON in the dashboard lights whenever car is started after 9-10 hrs and Car doesn't move until the battery sign is gone. Battery Sign usually remains ON for 10-15 ...
4
votes
1answer
53 views

External regulator just installed and now there is a battery drain that kills my car

My 1996 Jeep Grand Cherokee started beeping and telling me to check the battery. So I had the car tested and it said the voltage regulator was bad. The voltage regulator on these Jeeps are in the PCM,...
4
votes
2answers
20k views

diagnose faulty voltage regulator causing battery overcharging?

I've been having an issue with an '03 Toyota Echo. The alternator died (at least that is what I thought) as the battery kept going flat. I found an alternator at a wrecker and fitted it, and I ...
2
votes
1answer
66 views

2000 Jeep Cherokee 2WD battery light comes on

I recently purchased a 2000 Jeep Cherokee, and I live in Syracuse NY, where the winters are pretty cold. When I start it in the morning when it's cold out, the serpentine belt and tensioner need to be ...
3
votes
1answer
134 views

Motorbike has no power, but kick start works

First up the motorcycle in question is a Skyteam V-Retro 250 (V-Raptor in some countries). On the way home last night I noticed that my tail lights weren't working so I bought a new bulb like I had ...
3
votes
1answer
40 views

Reccommended booster for 2000 Jaguar S type (3 litre petrol, UK)

I only drive this car on weekends, and if I have only done short journeys there is a risk of a flat battery. This happened to me two days ago, and standing on a street in the cold waiting for ...
11
votes
2answers
2k views

Remote Key Fob working only inside the car (close to reciever)

I am struggling to get my Peugeot 308 2-Button Remote Key back to work. I noticed first issues when my Remote Key unlocked / locked the car after several attempts. Then one day it suddenly did not ...
7
votes
7answers
62k views

RPM and duration to recharge a battery?

My car had been sitting for a while without being driven. The battery now has a weak charge but it can get the engine started (barely). I would like to charge the battery by running the engine, but ...
7
votes
2answers
437 views

12V Battery change

4 weeks ago I changed a 12V battery on my Toyota Prius auto. But after being in for two weeks the battery was discharged again. I tried to recharge it, but it did not work - the charger does not start ...
6
votes
1answer
202 views

how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 ...
4
votes
2answers
69 views

When you replace a car battery, would anything in the A/C system be touched?

Last year my A/C was fixed. Then winter came. Then I had to buy a new car battery and so I went to a mechanic[1] who I paid to replace the battery with a new one. My question is: When you replace a ...
13
votes
1answer
302 views

Replace car batteries with capacitors?

I recently watched this video on YouTube which basically shows the guy replacing a larger capacitors with some smaller capacitors which he had bought. The larger capacitors were actually in place of a ...
4
votes
1answer
28 views

2005 Civic - Strange electrical issues

My wife's 05 civic started to have some strange electrical issues. I'm not sure even where to start troubleshooting. She originally complained that both headlights died simultaneously. I assumed ...
2
votes
1answer
68 views

Amplifier is causing battery drain

Okay I'm driving a 1998 Honda Civic EX and I have an audio system in my car that is about 7-8 years old now. I had done some work on one of the terminals on the subwoofers, and melted plastic in ...
18
votes
9answers
49k views

Battery drains by itself when vehicle is parked (parasitic draw)

A 1998 Jeep Grand Cherokee has gone through 3 batteries in the last 3 months. While they have all been replaced by warranties, it'd be nice to get the problem solved permanently. I've tested the ...
5
votes
2answers
144 views

Multimeter to check car battery current

short background, my car battery will often be too flat to start the car if I don't use it for about 48 hours. Worst it happened the other day after leaving it at airport car park for 4 days and come ...
6
votes
4answers
726 views

Considerations for soldering car battery wires?

I've had several problems with my car's wiring oxidizing at the exposed ends near and under post clamp and causing electrical connectivity problems. The braided wire is a pain to brush clean and I ...
4
votes
2answers
181 views

How much current should my car draw with the ignition on?

With the ignition fully off, my current draw is pretty much zero, but with the ignition on (to be clear - engine not spinning, starter motor not engaged) it increases to 2.5 amps (at about 11.5v, ...
7
votes
3answers
229 views

Portable jumpstart kits: why aren't regular car batteries this small?

I was looking at the details of this jumpstart product: It claims to be 2 lbs and 14.2 x 12 x 3.5 inches, which I think is for the outer black canvas case, so I would guess the actual device is ...
1
vote
2answers
92 views

Hyundai XG350 - Positive or Negative Ground Battery?

I have a 2002 Hyundai XG350, and all of the wires from the battery run out of sight before connecting to the chassis. There is only one wire coming off of the negative, and a number of different ...
2
votes
1answer
55 views

Are two-wheeler battery types interchangable [duplicate]

I have a Honda Activa 2007 model. The battery fitted in it is electrolyte topup battery which requires distilled water to be filled up from time to time. My question is can a maintenance free battery ...